TY - JOUR T1 - A Determination of the Exact Moments of Time When the Planet Venus Was at External and Internal Contact with the Sun's Limb, in the Transits of June 6th, 1761, and June 3d, 1769, By Samuel Dunn JF - Philosophical Transactions (1683-1775) VL - 60 SP - 65 EP - 73 PY - 1770/01/01/ UR - http://dx.doi.org/10.1098/rstl.1770.0009 M3 - doi:10.1098/rstl.1770.0009 AU - Dunn, S. ER -